Quartus Compilation Error - Quartus Compilation Error Description Designs that target the Cyclone II devices fail to compile in version 10.0 of the Quartus II software. This issue affects all designs that use Cyclone II devices. Your design fails to compile. Resolution Use version 9.1 of the Quartus II software. This issue will not be fixed. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 10.0 ['Cyclone® II FPGAs'] ['novalue'] ['novalue'] ['novalue']